Optical Communication & Networks Question Paper - May 2016 - Electronics and Telecom Engineering (Semester 7)

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Optical Communication & Networks - May 2016

MU Electronics and Telecom Engineering (Semester 7)

Total marks: 80
Total time: 3 Hours INSTRUCTIONS
(1) Question No. 1 is compulsory.
(2) Attempt any three from the remaining question.
(3) Draw neat diagrams wherever necessary

sove following.

1(a) Compare between intermodal and intramodal dispersion.

5 marks 944

1(b) What is the concept of bit interleaving and packet interleaving.

5 marks 978

1(c) What are the elements of SONET/SDH infrastructure.

5 marks 970

1(d) Explain the working principle of optical switches.

5 marks 968

2(a) Derive the expression for cut off wavelength for single mode transmission.

5 marks 00

2(b) ExplainOTDR with neat sketch.

5 marks 948

3(a) Give the details of network management in a typical optical Network.

5 marks 941

3(b) Explain the sources of loss at a fiber joint.

5 marks 00

4(a) What are the sources of micro bending loss? How it can be overcomed?

5 marks 947

4(b) Differenciate between Circulator and Isolator.

5 marks 972

4(c) Explain SONET architecture in detail.

5 marks 970

5(a) What is WDM? Explain the architecture of WDM with network component.

5 marks 973

5(b) Comment on optical assess networks.

5 marks 977

5(c) Comment on optical safety in communication Network.

5 marks 982

6(a) Highlight need of link budget what are the strategies of link budget in optical communication Network.

5 marks 962

6(b) A silica optical fiber has core refrative index of 1.5 and cladding refrative index 1.47 Determine.
i) The critical angle.
ii) Numerical aperture .
iii) The acceptance angle.

5 marks 921

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